160 ZOOLOGISCHE MEDEDEELINGEN — DEEL ITI. 




1887. Sesarma indica de Man. Zool. Jahrb. Syst., Bd. 2 p. 652 — no 
new locality. 
1899. Sesarma (Episesarma) indica Nobili. Ann. mus. ciy. stor. nat. 
Genova, (2) t. 20 p. 267 — New Guinea. 
1899. Sesarma (Sesarma) indica Nobili. Ann. mus. ciy. stor. nat. Genova, 
(2) t. 20 p. 507 — Nias. 
Specimens in the Museum: 
1 Q, locality unknown. : 
1 s sini D. P. Jentink coll. 1878 | ee De de 
: an 1883. 
1 ©, locality unknown. | 
I have before me a very fine series of this species, originating from 
Nias, and belonging to the Amsterdam Zoological Museum. Save some 
remarks of Nobili (1899, p. 267) the only rather extensive description 
of Ses. indica is given by de Man, and I shall restrict myself here only 
to indicating its principal characters. | 
Carapace very much convex, especially in a longitudinal direction, 
about as in the genus Sarmatiwm '), distinctly broader than long. Grea- 
test breadth of carapace lying at level of second epibranchial tooth, from 
here distally the lateral margins are distinctly converging. Upper orbital 
border nearly straight, slightly wavy; external orbital angle acute, with 
convex lateral margin and separated by a deep incision from the an- 
terior epibranchial tooth, that has about the same size, but the tip of 
which is directed somewhat more upward, and the lateral margin is 
nearly straight, not convex; second epibranchial tooth very dis- 
tinetly developed, more so than in any other species of Sesarma, 
that I know off (in Ses. tiomanensis Rathbun, that is very closely re- 
lated to the present species, it is said to be equally developed), of the 
same shape as the preceding tooth, but of smaller size. Surface of 
carapace closely covered with tufts of black hairs, largest 
on the anterior half of the carapace, but absent in the deep furrows, 
and reduced to short parallel rows on the branchial regions, which are 
only slightly sloping. The triangular intestinal region has some convex, 
long, hairy lines. All the regions are very distinct, as the grooves 
are deep, especially the mesial furrow, and those circumscribing the 
mesogastric area; the grooves between the median and lateral postfrontal 
lobes extending far backward. Median postfrontal lobes about 11/, times 
as large as the. lateral ones; all with rounded anterior margins. Front 
1) It is this superficial resemblance probably, that induced Heller (Crust. Reise ,,Novara”’, 
1865, p. 64) to refer a specimen of Sarmatium punctalum A Milne-Edwards to the present species. 
